Bronzing machine



Oct. 18, 1932. F. R. BELLUCHE BRONZING MACHINE Filed June 13, 1928 Sheets-Sheet 1 am) mm REF/1mm...

@ ZW mg Oct. 18, 1932.

F. R. BELLUCHE BRONZING MACHINE Filed June 13, 1928 5 Sheets-Sheet' 2 Oct. 18, 1932. F. R. BELLUCHE BRONZING MACHINE Filed June 15. 1928 5 Sheets-Sheet 5 WW I I AQQF i'I III Patented Oct. 18 r 1932 UNITED. srATEs RAT 1,ssz,743

ENT OFFICE nnanx R. BELLUCHE, on RACINE, WISCONSIN nnonzme MACHINE v I Application filed June 1 3 the bronze into the work and then past cleaning rolls which remove all excess bronze. As will be readily apparentzthe proper adjustment of the 'cleaningrollswith respect to the work is of extreme importance and heretofore has entailed the tedious-task of separately adjusting both ends of the; rolls and this invention has as an object the pro vision of an improved mounting for-the cleaning rolls whereby they maycbe ad usted from one side of the machine, retaining at all times a position parallel with the flXlS of the cylinder. I

Another object of this invention resides in the provision of'improved cleaning bars, for

the cleaning rolls which are automatically adjusted with the'rolls so as to just touch their surfaces, and thus insurev the efliclent removal of bronze therefrom which is withdrawn from the machine by an exhauster.

A further object of this invention resides in the provision of an improved bronzing. machine which is of extremely simple construction to insure the highest possible quality of work with increased speed.

With the above and otherobjects inview which'will appear as the description proceeds, my invention resides inthe novel con struct-ion, combination and arrangement of parts substantially as hereinafter described and more particularly defined'by the appended claims, it being understoodthat such changes in the precise embodiment of the hereindisclosed invention may bemade as come within the scope of the-claims.

In the accompanying] drawings, I have illustrated one complete example of the physical embodiment of m invention constructed accordingto the best model have 1928. Serial No. 285,030.

so far devised for the practical application of the principles thereof, and in which Figure 1 is a side,

elevational view, with parts broken away and in section, of a bronzing machine embodying my invention- Figure 2 is a view similar to Figure 1. of

the opposite side of the machine;

tail view of one end roll illustrating the same; i

section and par igure 3 is an igure' 4 is Figure 3 on the Figure 5 is a perspective view of enlarged, fragmentary, deof the cylinder cleaning means for adjusting the an enlarged View, partly in tly in elevation, ta

'en through plane of the line 4-4; and

one of the cylinder cleaning rolls and its cleaning abar,

- said roll and ba the machine.

' Referring now more companying drawings,

r being illustarted apart from particularly to the acin which like numerals designate like parts throughout thesevera l views, 5 represents the side frame members of the machine which ized for economy of are preferablylskeletonmaterial and weight. A

work feeding cylinder 6 is rotatably-mounted between the frame membersnear. their u central portions by bearings8, the'cylinder 6 having a gear pper a shaft7 journaled in one, end meshing with the gear 10-0f a work delivery cylinder-'11 mounted in advance of 0 the cylinder 6 but on a lower plane on a shaft 12 journaled'in bearings 13 similar to the bearings 8 of the cylinder 6. The gear 10 of the delivery cylinder is. driven by a pinion gear 14 fixed to a driven shaft 15 mounting a pulley 16 driven from a motor or other source of power, not shown, through a belt 17.

The cylinders economy of weight and material and have a transverse channel or recess 18' in.their'cirare preferably hollow for cumference in which gripper fingers, 19 are mounted on a shaft 20 to clamp, between them and the inclined or beveled edge 21 of the cylinder-channel-18, the leading. edge of the work-22 to be bronzedr- Suitable not shown, opens mechanism, 5

the grippers 19 7 when min" line with a stationary work feeding table :23 so that the work 22 enters therebetween; the grippers being then operated to engage the work in the man ner illustrated in Figure 1.

24 having their discharge ends trained about.

rollers 26 juxtapose the plate or table 23. As

the work passes over the cylinder 6, bronze 26 is sprayed thereon from a bin or source of supply 27 by which closes the bottom of the bin and throws bronze onto-the work, as indicated at 29, a guard plate 30 being disposed in advance of the brush28, as illustrated in Figure 1. The

' Work then passesbeneath a bronzing pad 01 member 31 carried by a canvas or mounting member 32 havlng its ends oppositely wound about a pair of spaced rotatably mounted rods or drummembers 33, as at 34, crank arms 35 being fixed to the members 33 and connected by a contractile spring 36 which tends at all times to wind the endsof the canvas- 32 on the members 33 and holds the pad taut against the surface of the cylinder 6. The bronzing pad is reciprocated trans versely of cylinder 6 ma plane parallel to its axis by a rack member 37 V which is reciprocally mounted on a pair of aligned bearings 38 and meshes with a gear wheel 39 fixed to a shaft 40 journaled in bearings 41 fixed to the frame 5and' mounting gears, not shown, concealed within gear housing 42. The gears within the housings 42 mesh with rack teeth, not shown, cut in the adjacent ends of the rods or drums 33 which project beyond the frame 5, as more at length described and illustrated in my copending application, Serial Number 285,032 filed June 13, 1928. Back 37 is reciprocated by a pitman 43' pivotally connected therewith, as at 44, and having one end connected with an eccentric 45 fixed on the driven shaft 15. s r

As the work "leaves the bronzing pad, it passes a plurality of-bronze removing rolls 46 which remove the excess of bronze from the work sothat" when it is discharged from the machine onto a delivery belt or conveyer 47 by the delivery roll 11 only the printed matter is 'bronzed. The cleaning rolls 46 being of identical construction, but one will be described in detail and the reference characters applied to all. Each roll 46 is preferably formed of cloth mounted on a shaft 48 the ends of which are journaled in bearing members'49 having depending skirts or mounting plates 50 which engage the outer surface of the frames 5, in the manner best illustrated in Figure 3, the skirts 50 being provided i with longitudinal grooves 51 which slida-bly receive a rotating spraying brush 28' keys or gibs 52 secured tothe side frames to permit longitudinal movement of the hearing members radially towards and away from the axis of the cylinder 6. The inner face of the skirts is further provided with spaced transversely positioned shoulders 53 and 54 which engage the periphery of adjusting discs 55 at opposite sides.

The discs 55 have eccentrically disposed sleeves or collars 56 which are journaled in apertures 57 in the frames and are splined on a shaft 58 extended across the machine, as at 59, so that rotation of the shaft by a suitable crank, not shown, applied to its squared end 60 extended beyond one bearing skirt 50 causes a simultaneous rotation of the discs 55 at both sides of the machine, which, being eccentrically mounted on the shaft, produces a longitudinal movement of the bearing members to consequently adjust the roll. The bearings are held in their adjusted positions by jam nuts 61 threaded on the ends of the shaft 58 to bind the bearings against the frame 5 and consequently hold the shaft against shifting.

Eachcleaning roll is provided with a clean ing' bar 60' which extends across the entire length of its roll and is pivotally mounted on a shaft 61', the ends of which are fixed in-the side frames 5. The cleaning bars of each roll are identical and are preferably cast to substantially arcuate shape in cross section having their edge'62 in close proximity with the periphery of their respective cleaning'rolls so that they remove all excess bronze therefrom. A lever or arm 63 is cast integral with each cleaning bar or otherwise secured adjacent one end thereof and has one end of a contractile spring 64 connected therewith, the other end of which is suitably secured to the side frame, to at all times urge the edge 62 of the cleaning bar toward the periphery of its roll, movement of the bar towards the roll being restrained by a cam 65 carried by the bearing members 49 on the side of the machine at which the adjustment of the rolls is effected. i A roller 66 rotatably mounted on a stud 67 extended from the cleaning bars engages the face of the cams 65 which is inclined outwardly and downwardly with respect to the axis of the cylinder 6, so that as the rolls becomeworn through use and are readjusted closer to the cylinder, the inclination of the face of the cams permits the springs 64 to l move the cleaning bars towards the periphery of the rolls to at all times maintain the edge 62 thereof at the proper position with respect thereto.

The side of the frame 5 adjacent the squared ends60 of the shafts 58 is apertured, as at 70, where the shafts of the rolls 46 pass there'through,'an area suflicient to permit a view of the contact of the rolls with the cylinder 6, so that a feeler or other adjusting member, not shown, may be inserted between the rolls and the cylinder to aid in theiradjust-, ment, as will be readily apparent. The frame 5 at the other side of the machine hasa series of slots, not shown, through which the roll shafts pass, the slots. being tightly closed by the skirts or flanges 50of the'adjacent bearmgs.

The rolls 46 are all rotated in the same di-. rection at a uniform speed by a sprocket chain 71 drivingly engaged with sprocket wheels 72 fixed to the extended ends of the shafts 48 opposite the side of adjustment, the sprocket chain being trained about a sprocket Wheel 7 3 fixed to the driven shaft 15. The sprocket chain is held taut and in engagement with the two inner sprocket wheels by an idler sprocket 74} which is carried by a conventional adjusting device 75. f

A cleaning roll structure 76 similar to the rolls 46 is mounted above the delivery roll or cylinder 11 to clean the under surface of passing through the ma-' the work or sheet chine.

From the foregoing description taken in connection with the accompanying drawings it will be readily apparent to those skilled in the art to which an invention of this character apertains that I provide an improved means for adjusting the cleaning rolls of a ing excess bronze from the cleaning roll, means for adjusting the cleaning roll with respect to the cylinder frame on one side of bronzing machine, which may be manipulated from one side of the machine and in which the cleaning bars of the rolls are automaticala ly adj uste What I claim as my invention is:

1. In a bronzing machine having a work receiving surface, a cleaning roll adapted to clean the work passed over the surface, a cleaning bar cooperating with the cleaning roll to remove excess bronze from the roll, means independent of the cleaning roll for maintaining the cleaning bar inoperative relation thereto, ously adjusting the cleaning roll and the cleaning bar.

2. A bronzing machine including a cylin-c der adapted to carry work to be bronzed through the machine, a cleaning roll, bearing members rotatably mounting the roll at each end thereof, a cleaning bar adapted to remove excess bronze from the cleaning roll, means for simultaneously moving the bearing members at each end of the cleaning roll to adjust the same with respect to the cylinder, and cooperating means carried by one bearing member and the cleaning bar for adjusting the cleaning to the periphery of the roll..

3. In a bronzing machine having a pair of side frames and a cylinder adapted to carry work to be bronzed through the machine, a

cleaning roll for removing excess bronze from the work, bearing members adjustably secured to the side frames to rotatably mount the cleaning roll, acleaning bar forremovand means for simultanebar with respect 

